Match the following:
| Respiratory Pigment | Animal/Animal group |
| a. Haemoglobin | I. Annelida |
| b. Chlorocruorin | II. Vertebrates |
| c. Hemerythrin | III. Lingula |
| d. Haemocyanin | I/v. Molluscs |
1
a - II, b - III, c - I, d - IV
2
a - II, b - I, c - III, d - IV
3
a - III, b - II, c - IV, d - I
4
a - IV, b - III, c - I, d - II